doubleohfive
Fleet Admiral
The "con" Sawyer pulls is pretty clear; Widmore thinks Sawyer has warned him about notLocke. notLocke thinks Sawyer has fooled Widmore; both Widmore and notLocke are now operating on faulty intel with regard to the other's movements leading up to their (expected) confrontation.
Sawyer's con is essentially this distraction so he and Kate can escape.
Sawyer's con is essentially this distraction so he and Kate can escape.